Adjuster bar



J. D. LEMEX ADJUSTER BAR Aug. 26 1924.

Filed May 5,

.'VENTOR.

f l Il,"

ATTORNEY' and accurately Fatented Aug. 26, i924.

UNITED STATES JOHN DELL LEMEX, OF TULSA, OKLAHOMA..

ADJ'USTER BAR.

Application filed May 5, 1921.

To all whom it may concern.'

Be it known that I, JOHN D. LEMEX, a citizen of the United States, residing at Tulsa, in the county of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in Adjuster Bars, of which the following is a specification.

This invention relates to an adjuster used in connection with oil pumping outfits for transmitting motion from a walking beam to a pump operating rod.

In operating oil and similar pumps, the

usual practice is to drive the pump from a walking beam which is rocked by any suitable source of power. The adjuster must be so mounted on the walking beam as to transmit only a reciprocable movement to the pump, while the end of the walking beam oscillates through an arc. The adjuster must also have a clamp for adjustably engaging the pump operating, or, as it is termed, the polished rod so that the piston of the pump will be in proper position and not too low or too high when the walking beam is at either limit of its movement, otherwise, injury to the pump would result. In the usual form of adjuster, it is necessary to slot the end of the walking beam. Such adjusters are usually T-shaped with a cross bar engaging on the top of the walking` beam and the stem depending` through the slot.

Furthermore, with the usual form of adjuster as now attached to walking beams, it is necessary, when it is desired to elevate or place pumping rods in the well, for a workman to climb on top ofthe walking beam and loosen the member known asvthe clamping board which holds the adjuster in place, whereby the adjuster may be moved out of the way of the rods to be inserted or elevated. This work entails a loss of considerable time, and is inconvenient and some* times dangerous.

' An object of the present invention is to provide an adjuster which may be quickly positioned on the walking beam and will not require slotting thereof, and which may be cheaply constructed and conveniently manipulated.

lVith my device, the adjuster, by means of its novel connection with the walking beam, need not be loosened or removed when a rod is being elevated or inserted, the construction enabling it to be swung back or to be swung over the end the walking beam Qutof the way,

Serial No. 466,880.

In the accompanying drawings, which illustrate an embodiment of my invention,

Fig'. 1 is a front view of the adjuster showing the clamps attached to metal straps;

Fig. 2 is a similar view showing wire cables substituted for the straps;

Fig. 3 is a side view of a portion of the adjuster, showing how it is carried by the walking beam;

Fig. 4 is a section on line IVI-IV of Fig.

Fig. 5 is a section on line V-V of Fig. 2;

Fig. 6 is a detail section on line VI-V I of Fig. 5 with the collar omitted;

Fig. 7 is a section on line VII-VII of Fig. 2,

Fig. 8 is a side elevation of a modified construction; and

Fig. 9 is a. section on line IXe-IX of Fig. 2, but showing the modified construction with cables in place of straps.

Referring to Fig. 3, of the drawings, A is a walking beam having a transverse groove across its end, and B an adjuster board of the kind usually employed in connection with vadjusters.

The adjuster comprises a stirrup having a rounded cross member 5 which connects the upper ends of depending side members or arms 6. I prefer that the stirrup be formed as an integral structure, as shown, but it need not necessarily be so made. Between the lower ends of the side members 6 is a spacing block 7 which has channeled sides 8 (see Fig. 7 One faceof the block is preferably recessed and on this face is a longitudinally extending projection 9 having a rounded upper end 9 and having recesses 10 formed in its sides. At 11 are` elongated openings in. the block 7 which open into the channels 8.

In the construction shown in Fig. 1, straps 12 are received in the channels 8, and bolts 13, passing through side'arms 6, straps 12 and block 7 hold the several parts together. The straps 12 extend down wardly a suitable distance and carried at their lower ends is a suitable clamping means of any preferred construction. I

have shown jaws 14 welded or otherwise se! rIhrough a purpose cured to the ends of the straps. the jaws 14 are openings 14'al for to be hereinafter described.

Embracing the lower ends of the straps is a collar 15' which may be moved up and down thereon 0r removed- .eatirely as indie passed around cated in dotted lines in Fig. 1. The pump operating or polished rod is gindicatedat C. In the collar is a set screw 16 Jfor forcing the jaws together. When the polished rod has been properly adjusted, set screw 16 may be turned to bring the jaws 14 into clamping relation with the rod.

In oper-ation, the stirrup is first placed on the walking beam A and clamped into place by adjuster board B. Then the polished rod and the adjuster are manipulated until .in proper position and then clamped. Upon oscillation yof the walking beam, the adjuster is reciprocated ,and this motion is transmitted to the polished rod. By reason of the cross member 5 of the stirrup being rounded, the connection with the walking beam is in eievct a pivoted one, so that the adjuster does not swing inl an are with the end of the beam.

In place of straps 12, be used. The cable is over projection 9. U-bolts 21 yare then the .cable and through open ings 11. The recesses 10 serve to give suflicient `space for The ends of the U-bolts extend into channels a wire cable QOYmay 8, where the .usual nuts are applied, as

shown L1n Fig. 7,. Then the .block is connected with .the .depending side members of the stirrup by the bolts 13. The depending Iends ot the cable are suitably connected with clamping means .of lany preferred .construction.

As sh0wn,the clamping means comprise a pair of jaw members 14 similar to those hown in Fig. 1. .One of the jaw members is attached yto one ,of the cable .ends .and one of the jaw members to the .other cable end, the attachment being effected by passing the cable ,ends through openings 14' in their respectiye aws and babbitting them, as shown in the detail sectional view (Fig. v6). Thus, the jaws are ,constructed the same tor use with cables or with straps.

This .construction is used in the same way as is the construction in Fig. 1, but its apj ilication is limited to wells in which the oil is sufficiently thin to permit the plunger to lower by gravity at the same rate the walki-ngbeam reeks downwardly. yIt will, of course. be .obvious that instead of having an interchangeable spacing 4member adapted to be used with either rigid or flexible clamp carrying means, separate blocks might be employed.

lt may be desirable to place the stirrup at an angle to the block, and in the construction shown in Figs. 8 and 9, this may be done. The sides of the stirrup are indicated at 25., and at' 26 is al slot therein. The block is indicated at 27. The upper bolt 28 passes through lthe block and through the slots inthev members 25.

passes throng-h the parts in the usual vmanlooped and piaced members in fixed spaced reiation, manipulating the -U -bolts The lower bolt -f ner. The stirrup may be adjusted to the proper angle and then the nuts lon the bolts tightened, and the parts thus secured in the desired position. y

lVith this form of adjuster, it will be seen that when it is desirable to insert a pump operating rod, or to elevate one, the adjuster can be swung back or swung over the end of the walking beam out of the way, the movement not being limited by .contact Awith the walls of a slot, as is the -usual T-form of adjuster, used.

.Various .changes and moditications xmay -be made in lthe Iconstruction shown without departing from the broad features ot my invention.

iVhat l claim is:

1. An adjuster for transmitting motion from a walking beam to a pump operating rod .comprising Ian integral stirruphaving side members 4and a cross member connecting the .upper ends .of the side `members, means @tor holdin-g the lower ends ofthe side and spaced apart iiexible extensions .of greater length than the side vmembers of the `stirrup depending rom the spacingineans, and haV- ing clamping means at the lower `ends thereof, said yclamping*means ybeing lco-axially alined wi h thespacing means, said spacing means providing the upper limit ,tol which a pump rod Vengaged inthe clamp may reach, whereby `the pump rod. with which the adjuster is used will always be well below thestirrup to provide clearance .for a walking beam.

2. An adjuster for transmitting motion from a walking beam to a pump .operating rod comprising a stirrup having a cross member tor engaging a beam and depending side members, an ladjustable spacing member connecting the depending side members 4of the stirrup, and cla-mp carrying means depending from the spacing member.

3. An adjuster for transmittingmotion from a walking beamto` a pump operating rod comprising a stirrupl having a cross member for engaging the beam and .depending side members, a spacing member connecting the depending side members, spaced apart straps separate fromv the stirrup secured to and depending from the spacing member, and clamping members Ion .thelower ends of 'the straps tor engagement with a pump operating rod.

4. An adjuster for transmitting motion from a walking beam to a pum-p .operating rod comprising a stirrup havingl-a .cross member for engaging the beam, and depending side members, a spacing member connecting the depending `side members, clamp carrying `means depending lfrom the spacing member andfhavi-ng a- .clamp-.at the lower end thereof, and meelS.- whereby the as heretofore angle of the stirrup may be adjusted with relation to the spacing member.

5. In an adjuster, a stirrup for engagement with a walking beam, a spacing member connected with the stirrup, and means whereby the angle of the spacing member may be varied with relation to the stirrup.

6. An adjuster for transmitting motion from a walking beam to a pump operating member comprising a stirrup having a cross member and depending side members, a spacing member between the lower ends of the side members, and means on the spacing member arranged to accommodate either flexible or rigid clamp carrying means.

7. An adjuster for transmitting motion from a walking beam to a pump operating rod comprising a stirrup having depending side members, an adjustable spacing block interposed between said side members, spaced apart clamp carrying means suspended from the adjustable spacing block to a considerable distance below said spacing block, and a clamping means carried at the lower ends of said clamp carrying means and arranged to embrace a pump operating rod in such manner that the pump operating rod may extend up between the spaced apart clamp carrying members in alinement with the longitudinal aXis of said clamp carrying means.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN DELL LEMEX.

Witnesses H. N. GARDNER, JOSEPH B. BARTLETT. 

